Find Flexflight(W2) flights from Kolkata to Bangkok

At the moment, you can catch a nonstop flight from Kolkata to Bangkok with the following airlines, including: Thai Lion Air Thai AirAsia Bhutan Airlines Thai Vietjet Air Indigo Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

It takes about 2 hours 37 minutes to fly from Kolkata to Bangkok.

By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Kolkata to Bangkok is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

Based on Trip.com data in the past 4 weeks, there is 18 flight per week flying from Kolkata to Bangkok. You can check the weekly schedule for popular airlines on this route below: Thai AirAsia: S/M/T/W/T/F/S -- FD121 (01:05) Thai Airways: S/M/T/W/T/F/S -- TG314 (02:14)

The cheapest months to fly from Kolkata to Bangkok is September, when demand for travel is lower.

After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Kolkata to Bangkok on December 18, 2025 with Thai Lion Air, with prices starting at US$75.

You can land at any one of the following hubs in Bangkok, with Netaji Subhas Chandra Bose International Airport to Suvarnabhumi Airport (CCU-BKK) is by far the most common option on this route: Suvarnabhumi Airport (BKK) Don Mueang International Airport (DMK).

The time difference between Bangkok and Kolkata is 1h.

Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.